|The PoolManagerDataSource can now be configured to test a pooled connection to verify it is still good before returning it. This feature is disabled by default. To enable it you must set the testConnection property to true. If you are creating the PoolManagerDataSource directly then this is done by calling the method setTestConnection( true ).
See the following document for more details.
You can also refer to the JTurbo 2005 User Guide for more details.